private Job findJob() {
Job foregroundJob = jobController.foregroundJob();
return jobController()
.jobs()
.stream()
.filter(job -> job != foregroundJob)
.sorted((j1, j2) -> ((Long) j1.lastStopped()).compareTo(j2.lastStopped()))
.findFirst()
.orElse(null);
}
public ShellImpl init() {
term.interruptHandler(key -> jobController().foregroundJob().interrupt());
term.suspendHandler(
key -> {
term.echo(Helper.fromCodePoints(new int[] {key, '\n'}));
Job job = jobController.foregroundJob();
term.echo(statusLine(job, ExecStatus.STOPPED) + "\n");
job.suspend();
return true;
});
term.closeHandler(v -> jobController.close(ar -> closedFuture.complete()));
if (welcome != null && welcome.length() > 0) {
term.write(welcome);
}
return this;
}
public void readline() {
term.readline(
"% ",
line -> {
if (line == null) {
// EOF
term.close();
return;
}
List<CliToken> tokens = CliToken.tokenize(line);
if (tokens.stream().filter(CliToken::isText).count() == 0) {
// For now do like this
ShellImpl.this.readline();
return;
}
Optional<CliToken> first = tokens.stream().filter(CliToken::isText).findFirst();
if (first.isPresent()) {
String name = first.get().value();
switch (name) {
case "exit":
case "logout":
term.close();
return;
case "jobs":
jobController
.jobs()
.forEach(
job -> {
String statusLine = statusLine(job, job.status()) + "\n";
term.write(statusLine);
});
readline();
return;
case "fg":
{
Job job = findJob();
if (job == null) {
term.write("no such job\n");
readline();
} else {
if (job.status() == ExecStatus.STOPPED) {
job.resume(true);
} else {
job.toForeground();
}
}
return;
}
case "bg":
{
Job job = findJob();
if (job == null) {
term.write("no such job\n");
readline();
} else {
if (job.status() == ExecStatus.STOPPED) {
job.resume(false);
term.echo(statusLine(job, ExecStatus.RUNNING) + "\n");
readline();
} else {
term.write("job " + job.id() + " already in background\n");
readline();
}
}
return;
}
}
}
Job job;
try {
job = createJob(tokens);
} catch (Exception e) {
term.echo(e.getMessage() + "\n");
readline();
return;
}
job.setTty(term);
job.setSession(session);
job.statusUpdateHandler(
status -> {
if (status == ExecStatus.RUNNING && job == jobController.foregroundJob()) {
term.echo(job.line() + "\n");
}
});
job.run();
},
completion -> {
commandManager.complete(completion);
});
}